Hubble Space Telescope (Score 1)

The HST should definately be considered one of the greatest hacks of all time! NASA launches an expensive telescope and didn't grind the lens correct so what do they do? They build a contact lens for it. Whoever thought of that idea is a genius. What simplicity!! And the satellite has been beaming back beautiful pictures ever since... well.... until it's gyroscopes failed. But no one is perfect.